I am running two BadAss 2320-820 motors on my twin.  I need prop recommendations.  It is a large (710 squares) plane and a bit overweight at 70oz.  I have no idea where to go for quality props in small sizes (9-10") in counter rotating sets.

Ken

I use APC Propellers on all my electrics (https://www.apcprop.com).  Many choices to test out (diameter, pitch).

Thanks, I have two APC sets coming Thursday, a 9x6 and a 10x5.  I hope you are right.

Ken

Ken I use Badass wood 10'x5 L/R on my twin  with Bad ass 2814- 870 KV

I think that you have just convinced me.  I spent most of yesterday trying to figure out why my 2320s were using so much power.  With the help of some others we concluded that the plane wanted a 10x5 prop but the motor didn't.  The only answer to using less energy was a bigger motor.  Bob Hunt recommended the 23xx series so that is what I have now.  What I did not factor in was that his planes are lighter than the surrounding air.  Mine are more like lighter than the workbench.  We hit on the 2814-870.  I will be building new nacelles to house the 28s.  Good thing is that the added weight will be offset by a 6s 2800 instead of a 5s 4200.  This plane, heavy as she is flys so well that it is worth saving.

Ken